Davidson UAB-CEE Homepage

P1010022 Protective Structures Research

Since the late 1990’s my students and I have worked closely with engineers of the several agencies focused on developing technologies to protect people from extreme load events, including blast. This includes the Engineering Mechanics and Explosion Effects Research Group (EMEERG) of the Air Force Research Lab (AFRL) and the US Army Engineer Research and Development Center Geotechnical and Structures Laboratory. This typically involves developing analytical and computational models to compliment explosive testing done at government laboratories. The recent focus of most of the work has been on the response of precast and masonry to blast loading. Another interest is in developing lightweight and expedient ways of increasing building occupant protection against blast. The threat scenario is terrorism attack such as the Khobar Towers incident or the Oklahoma City bombing. We also helped the Air Force design, analyze, and test an anchor system for the "next generation" of fighter aircraft. The engines of fighter aircraft are routinely removed and replaced for inspection and maintenance. After the engines have been placed back into the aircraft and prior to flight, the aircraft must be "anchored" and the engine capacity checked to full thrust. A new design is needed because the thrust of future fighter aircraft, starting with the F-22, far exceeds the capacity of current anchors. The system we designed and tested is now being installed at U.S. airbases all over the world.

Shot3 Overall HS_0001 STUDENTS

Pengfei Chen (Summer 2015) Finite Element Simulation Methodology for local Impact Effect of Windborne Missiles on Precast Concrete Panels (project report)

Anthony Consunji (Spring 2015) Connection Demand Prediction for the Design of Precast Concrete Wall Panels Subjected to Blast Loads (published thesis, AU)

Joey Nickerson (Summer 2014) Finite Element Simulation of Precast/Prestressed Insulated Sandwich Panels Optimized for Construction of Government Facilities (published thesis, AU)

Eric Gagnet (Spring 2013) Static Resistance Functions for Unbonded Retrofit Unreinforced Concrete Masonry Walls with Plate Connection for Blast Design Applications (published thesis, AU)

Brett Perkins (Spring 2013) Design of a Rapid-Erect, Man-Portable Structure for Airbase Asset Protection (project report)

Daniel Brannon (Spring 2012) Breaching of Concrete Masonry Unit Walls due to Direct Shear when Subjected to Blast Loading (published thesis, AU)

Dustin Sadler (MSCE December 2011) Rapid Strengthening of Roadway Drainage Culverts Subjected to Internal Dynamic Pressure (published thesis, AU)

Michael Newberry (MSCE May 2011) Finite Element Simulation and Assessment of Single-Degree-of-Freedom Prediction Methodology for Insulated Concrete Sandwich Panels Subjected to Blast Loads (published thesis, AU)

Bob Browning (MSCE December 2008) Resistance of Multi-wythe Masonry Walls Subjected to Impulse Loads (published thesis, AU)

Lee Moradi (PhD December 2007) Design Methodology for Composite Retrofit Wall Structures for Blast Loads (published dissertation, UAB)

David Ray (MSCE May 2007) SDOF Resistance Functions for Soft-walled Shelters Subjected to Shock Loads (published thesis, UAB)

Deepak Somasundaram (MSCE May 2007) Response of Polymer Encased Concrete Walls Subjected to Blast Loads (published thesis, UAB)

Brad Harrison (MSCE August 2006) On-site Testing of High-capacity Aircraft Engines in Existing Concrete Slabs (project report)

Vinodh Rajamani (MSME May 2006) Finite Element Analysis of a Bolt-Down Aircraft Anchor (project report)

Sushant Sudame (MSCE December 2004) Development of High-Fidelity Computational Models and Parametric Studies of Masonry Walls Subjected to Blast (published thesis, UAB)

Danica Thornburg (MSCE May 2004) Evaluation of Elastomeric Polymers Used for External Reinforcement of Masonry Walls Subjected to Blast (published thesis, UAB)

Lee Moradi (MSCE May 2003) Constitutive Properties for a Single Concrete Masonry Unit (CMU) Subjected to Blast (project report)

Dan Connell (MSCE August 2002) Evaluation of Elastomeric Polymers for Retrofit of Unreinforced Masonry Walls Subjected to Blast (published thesis, UAB)

PUBLICATIONS

Nickerson JM, Trasborg PA, Naito CJ, Newberry CM, and Davidson JS, “Finite Element Evaluation of Blast Design Response Criteria for Load-Bearing Precast Wall Panels,” International Journal of Protective Structures, Volume 6 • Number 1 • 2015.

Trasborg PA, Nickerson JM, Naito CJ, Newberry CM, Olmati P, and Davidson JS, “Forming a Predictable Flexural Mechanism in Reinforced Wall Elements,” Structural Journal, ACI, Volume 111 Issue 6, Pages 1481-1490, November 2014.

Nickerson JM, Trasborg PA, Naito CJ, Newberry CM, and Davidson JS, “Finite Element Assessment of Methods for Incorporating Axial Load Effects into Blast Design SDOF Analyses of Precast Wall Panels,” Journal of Performance of Constructed Facilities, ASCE, October 2014, ISSN 0887-3828/B4014006(11).

Naito CJ, Olmati P, Trasborg PA, Davidson JS, Newberry CM, “Assessment of insulated concrete walls to close-in blast demands,” Journal of Performance of Constructed Facilities, ASCE, DOI: 10.1061/(ASCE)CF. 1943-5509.0000643, September 2014.

Hoemann JM, Shull JS, Salim HH, Bewick BT, and Davidson JS, “Performance of Partially Grouted, Minimally Reinforced CMU Cavity Walls against Blast Demands, Part I: Large Deflection Static Resistance,” Journal of Performance of Constructed Facilities, ASCE, 10.1061/(ASCE)CF.1943-5509.0000508, 04014113, September 2014.

Hoemann JM, Shull JS, Salim HH, Bewick BT, and Davidson JS, “Performance of Partially Grouted, Minimally Reinforced CMU Cavity Walls against Blast Demands, Part II: Performance under Impulse Loads,” Journal of Performance of Constructed Facilities, ASCE, 10.1061/(ASCE)CF.1943-5509.0000509, 04014114, September 2014.

Browning RS, Dinan RJ, and Davidson JS, “Blast Resistance of Fully Grouted Reinforced Concrete Masonry Veneer Walls,” Journal of Performance of Constructed Facilities, ASCE Vol. 28, No. 2, April 1, 2014.

Newberry CM, Hoemann JM, Bewick BT, Davidson JS, “Response Prediction of Foam-Insulated Concrete Sandwich Panels Subjected to Blast Loads using Bilinear Weighted-Resistance SDOF Models,” International Journal of Protective Structures, Volume 3 • Number 4 • December 2012.

Newberry CM, Hoemann JM, Bewick BT, and Davidson JS, “Finite Element Simulation of Foam Insulated Precast Concrete Sandwich Panels Subjected to Blast Loads,” ACI special publication entitled “Behavior of Concrete Structures Subjected to Blast and Impact Loadings” sponsored by ACI Committees 370, Short Duration Dynamic and Vibratory Load Effects, and 447, Finite Element Analysis of Reinforced Concrete Structures; Volume 281, January 2012.

Browning RS, Hoemann JM, and Davidson JS, “Large-Deflection Response of Fully Grouted Reinforced Masonry Walls to Static and Dynamic Out-of-Plane Pressure,” ACI special publication entitled “Behavior of Concrete Structures Subjected to Blast and Impact Loadings” sponsored by ACI Committees 370, Short Duration Dynamic and Vibratory Load Effects, and 447, Finite Element Analysis of Reinforced Concrete Structures; Volume 281, January 2012.

Moradi LG, Dinan RJ, Bewick BT, Davidson JS, “Resistance of Concrete Masonry Walls with Membrane Catcher Systems Subjected to Blast Loading,” International Journal of Protective Structures, Volume 2 Number 1 2011.

Moradi LG, Davidson JS, Dinan RJ, “Response of Bonded Membrane Retrofit Concrete Masonry Walls to Dynamic Pressure,” Journal of Performance of Constructed Facilities, ASCE Vol. 23, No. 2, 72-80, April 1, 2009.

Moradi LG, Davidson JS, Dinan RJ, “Resistance of Membrane Retrofit Concrete Masonry Walls to Lateral Pressure,” Journal of Performance of Constructed Facilities, ASCE Vol. 22, No. 3, June 2008, 131–142.

Davidson JS, Fisher JW, Hammons MI, Porter JR, and Dinan RJ, “Failure Mechanisms of Polymer Reinforced Concrete Masonry Walls Subjected to Blast” Journal of Structural Engineering, ASCE v 131, n 8, August, 2005, p 1194-1205, August 2005.

Davidson JS, Porter JR, Dinan RJ, Hammons MI, and Connell JD, “Explosive Testing of Polymer Retrofit Masonry Walls,” Journal of Performance of Constructed Facilities, ASCE Vol. 18, No. 2, May 2004.

PRESENTATIONS (presenter)

“Recent Developments towards the Design of Masonry Walls for Blast Loading,” 12^th North American Masonry Conference, Denver, Colorado, May 17 – 20, 2015.

“Peak Transient Shear and Connection Demand Prediction for the Blast Load Design of Slender Precast Panels,” Consunji AC, Nickerson JM, Newberry CM, Naito CJ, and Davidson JS, Proceedings of the 3^rd International Conference on Protective Structures (ICPS3), Newcastle, Australia, 3-6 February 2015.

“Finite Element Analysis of Load Bearing Precast Concrete Wall Panels Subject to Blast,” Nickerson JM and Davidson JS, 60^th Anniversary PCI Convention and National Bridge Conference, National Harbor, MD, September 6 - 9, 2014.

“Blast Design Considerations for Load‐bearing PC/PS Sandwich Panels used in Multi‐story Total Precast Construction,” Nickerson JM, Trasborg PA, Newberry CM, Naito CJ, and Davidson JS, 10^th International Conference on Shock & Impact Loads on Structures, 25-26 November 2013, Singapore.

“Finite Element Simulation of Insulated PC/PS Sandwich Panels Optimized For Construction of Government Facilities,” Nickerson JM and Davidson JS, 2013 Precast/Prestressed Concrete Institute (PCI) Convention, Session Title: Research and Development, Grapevine Texas, 22 September 2013.

“Use of Foam-Insulated Concrete Sandwich Panels for Blast Protection Applications” Nickerson JM, Trasborg PA, Newberry CM, Naito CJ, and Davidson JS, 15^th International Symposium on the Interaction of the Effects of Munitions with Structures and the International Conference of Protective Structures (a joint conference), September 17‐20, 2013, Potsdam Germany.

“Innovative Materials for Protective Structures Applications” Alabama Composites Conference, hosted by the University of Alabama at Birmingham 20 June 2013.

“Collaborative Research: Development of a Blast and Ballistic Resistant Precast Concrete Armored Wall System”, Trasborg PA, Olmati P, Naito CJ, Nickerson JM, and Davidson JS, poster presentation, 2012 NSF CMMI Research and Innovation Conference, Boston, MA from 9‐11 July 2012.

“Use of Empirical Constitutive Properties to Develop a Resistance Function for Reinforced Masonry,” Browning RS and Davidson JS, 2011 ASCE Structures Congress.

“Full-Scale Blast Test Response of Partially Grouted Masonry Walls,” Michael Hammons, Bryan Bewick, and James Davidson, 81^st Shock and Vibration Symposium, Session: Structural Walls, October 24 – 28, 2010, Orlando, FL.

“Comparison of Resistance Functions used by UFC 3-340-02 for Reinforced Masonry Walls to a More Rigorous Approach,” Robert Browning, John Hoemann, and James Davidson, 81^st Shock and Vibration Symposium, Session: Structural Walls, October 24 – 28, 2010, Orlando, FL.

“Large‐Deflection Response of Fully Grouted Reinforced Masonry Walls to Static and Dynamic Out‐of‐Plane Pressure,” Robert S. Browning, John M. Hoemann, Bryan T. Bewick, and James S. Davidson, ACI Fall 2010 Convention, Session: Blast and Impact Loading Response of Concrete Structures: Experimental and Numerical Investigations; Pittsburgh, PA, 24 October 2010.

“Finite Element Simulation of Foam-Insulated Prestressed Concrete Sandwich Panels Subjected to Blast Loads,” Charles M. Newberry, John M. Hoemann, Bryan T. Bewick, and James S. Davidson, ACI Fall 2010 Convention, Session: Blast and Impact Loading Response of Concrete Structures: Experimental and Numerical Investigations; Pittsburgh, PA, 24 October 2010.

“Out-of-Plane Response of Multi-wythe Insulated Masonry Walls Subjected to Blast Loads,” J.M. Hoemann, H.H. Salim, B.T. Bewick, and J.S. Davidson, The First International Conference of Protective Structures, 29 September to 1 October 2010, Manchester UK.

“Resistance and SDOF Methodology for Membrane Retrofit Concrete Masonry Walls Subjected to Blast,” L.G. Moradi, J.M. Hoemann, B.T. Bewick, and J.S. Davidson, The First International Conference of Protective Structures, 29 September to 1 October 2010, Manchester UK.

“Use of Polymers and Composites for Infrastructure Protection Applications,” James S. Davidson, Alabama Composites Conference -- Expanding Avenues – Structural Composites in Defense, Power, Energy, Transportation, and Infrastructure Applications, August 24-26, 2010, University of Alabama at Birmingham, Birmingham, Alabama.

“Simulation of Prestressed Concrete Sandwich Panels Subjected to Blast Loads,” Charles M. Newberry, John M. Hoemann, Bryan T. Bewick, and James S. Davidson, North American Steel Construction Conference and ASCE Structures Congress, May 12-15, 2010, Track: Concrete and Masonry Structures; Session: Design and Behavior of Prestressed Concrete Subjected to Blast and Impact Loading, Sponsored by: Concrete and Masonry Structures (CCMS) Joint ACI-ASCE Committee 423 Prestressed Concrete.

“Boundary Condition Behavior and Connection Design for Retrofitted Unreinforced Masonry Walls Subjected to Blast Loads,” John Hoemann, James Davidson, Robert Dinan, and Bryan Bewick, North American Steel Construction Conference and ASCE Structures Congress, May 12-15, 2010, Track: Concrete and Masonry Structures; Session: Design Analysis and Testing of Blast Resistant Curtain Walls, Sponsored by: Committee on Blast Shock and Impact.

“Performance of Energy Efficient Conventional Insulated Concrete Walls under Blast Demands,” Clay Naito, James Davidson, John Hoemann, Jonathan Shull, and Robert Dinan, 2009 USACE Infrastructure Systems Conference, July 20–24, 2009, Cleveland Ohio.

“Resistance Definition for Membrane Retrofit Concrete Masonry Walls Subjected to Blast,” Lee G. Moradi, James S. Davidson, and Robert J. Dinan. ASCE Structural Engineering Institute's 2009 Structures Congress, Austin Texas, April 30 - May 2, 2009.

“Response and Analyses of Multi-wythe Insulated Masonry Walls to Out-of-Plane Dynamic Pressure,” Robert S. Browning, James S. Davidson, and Robert J. Dinan. ASCE Structural Engineering Institute's 2009 Structures Congress, Austin Texas, April 30 - May 2, 2009.

“Full-Scale Dynamic Testing of Multi-wythe Insulated Masonry Walls,” Robert Browning, John Hoemann, and James Davidson. 79^th Shock and Vibration Symposium, SAVIAC, 26 – 30 October 2008 Orlando, FL.

“Simulation of Insulated Masonry Walls Subjected to Impulse Loads using LS-DYNA,” Robert S. Browning, James S. Davidson, and Robert J. Dinan. Huntsville Simulation Conference, Sponsored by The Society for Modeling and Simulation International and The Alabama Modeling and Simulation Council (AMSC), Huntsville Alabama, 22-23 October 2008.

“Use of Polymeric Materials for Protective Structures Applications,” James S. Davidson and Robert J. Dinan. Military Track. Breaking New Ground, Structural Composites Applications in Defense, Infrastructure, Transportation, and Corrosion Prevention. American Composites Manufacturing Association, March 4-6, 2008, Birmingham Alabama.

“Protective Structures Research of the US Concrete Industries,” Invited keynote presentation, Annual Conference of the Korea Society of Hazard Mitigation (KOSHAM), hosted by Seoul City University, 29 February 2008, Seoul Korea.

“Ductility Enhancement of Concrete Masonry Walls for Lateral Impulse Pressure,” A presentation to the students and faculty of Korea University, 27 February 2008, Seoul Korea.

“An Overview of Protective Structures Research of the US Concrete Industries and Response of Precast Sandwich Panels Subjected to Impulse Loads,” A presentation to the students and faculty of Korea University, 27 February 2008, Seoul Korea.

“Blast Resistance of Masonry Walls,” Masonry Industry Federal Officials Seminar, Tuesday 27 November 2007, Washington DC.

“Concrete Masonry Blast Resistance,” Robert S. Browning, James S. Davidson, Jeff W. Fisher, Dennis W. Graber, and Robert J. Dinan. NCMA Annual Convention and Manufactured Concrete Products Exposition Session: Masonry Blast Resistance Research, Concrete Products University - Industry Challenge Breakfast, Wednesday 6 February 2008, Denver Colorado.

“Analysis and Testing of Insulated Concrete Masonry Walls Subjected To Blast,” James S. Davidson, Robert S. Browning, Jeff W. Fisher, Robert J. Dinan, Dennis Graber. TMS [The Masonry Society] 2007 Annual Meeting, Pittsburgh Pennsylvania, November 8-13 2007

“Simulation of Slender Precast Concrete Wall Panels Subjected to Blast Loads using LS-DYNA,” Robert S. Browning, James S. Davidson, Bryan T. Bewick, Jeff W. Fisher, and Robert J. Dinan. The Huntsville Simulation Conference 2007, Sponsored by The Society for Modeling and Simulation International and The Alabama Modeling and Simulation Council (AMSC), Huntsville Alabama, 30 October - 1 November 2007.

“Finite Element Simulation of a Flexible Shelter Structure under Blast Loading,” Zuoping Li, David P. Ray, James S. Davidson, Bryan T. Bewick, Robert J. Dinan. The Huntsville Simulation Conference 2007, Sponsored by The Society for Modeling and Simulation International and The Alabama Modeling and Simulation Council (AMSC), Huntsville Alabama, 30 October - 1 November 2007.

“Simulation of Polymer Encased Concrete Walls Subjected to Blast using High Performance Computing,” Deepak Somasundaram, James S. Davidson, Robert J. Dinan. The Huntsville Simulation Conference 2007, Sponsored by The Society for Modeling and Simulation International and The Alabama Modeling and Simulation Council (AMSC), Huntsville Alabama, 30 October - 1 November 2007.

“Simulation Methodologies for Membrane Retrofit Concrete Masonry Walls Subjected to Blast,” Lee G. Moradi, James S. Davidson, Robert J. Dinan. The Huntsville Simulation Conference 2007, Sponsored by The Society for Modeling and Simulation International and The Alabama Modeling and Simulation Council (AMSC), Huntsville Alabama, 30 October - 1 November 2007.

“Analysis of Precast Concrete Wall Panels Subjected to Blast Effects,” James S. Davidson, Robert S. Browning, Jeff W. Fisher, and Robert J. Dinan, 2007 Precast/Prestressed Concrete Institute (PCI) Convention, Session Title: Seismic Design & Research Issues – Developing Innovative Solutions for Design and Construction of Precast/Prestressed Concrete Construction Systems, Phoenix Arizona, October 21-24 2007.

“AFRL and PCA Research Collaboration on Blast Resistant Concrete Products,” James S. Davidson, Jeff W. Fisher, and Robert J. Dinan, 2007 Precast/Prestressed Concrete Institute (PCI) Convention, Session Title: Advances in the Blast Resistance of Precast Concrete Structures, Phoenix Arizona, October 21-24 2007.

“Analysis of Precast Concrete Wall Panels Subjected to Blast Effects,” James S. Davidson, Robert S. Browning, Jeff W. Fisher and Robert J. Dinan, Fall 2007 American Concrete Institute (ACI) Convention, ACI 550 Precast Session, Precast Concrete Structural Systems for the Future, October 14-18 2007, Fajardo, Puerto Rico.

“Resistance of Slender Precast Concrete Wall Panels to Blast Loads,” Robert S. Browning, James S. Davidson, Bryan T. Bewick, Jeff W. Fisher, and Robert J. Dinan, International Symposium on Interaction of the Effects of Munitions with Structures (ISIEMS)12.1, Hosted by the Defense Treat Reduction Agency, Orlando, Florida, September 17-21, 2007.

“Blast Response of Stay-in-Place Polymer Formwork Walls,” James S. Davidson, Jeff W. Fisher, and Robert J. Dinan, International Symposium on Interaction of the Effects of Munitions with Structures (ISIEMS)12.1, Hosted by the Defense Treat Reduction Agency, Orlando, Florida, September 17-21, 2007. (Presented by Bob Browning)

“Resistance of Aluminum Arch Shelters to Blast Loading,” Bryan T. Bewick, James S. Davidson, David P. Ray, Robert J. Dinan, International Symposium on Interaction of the Effects of Munitions with Structures (ISIEMS)12.1, Hosted by the Defense Treat Reduction Agency, Orlando, Florida, September 17-21, 2007.

“Performance of Polymer-encased Concrete Walls Subjected to Blast Loads,” Davidson, J.S., Fisher, J.W., Dinan, R.J., presented at the 2006 ASCE Structures Congress, May 18-21 2006, St. Louis Missouri.

“Simulation of PVC Encased Concrete Walls Subjected to Blast,” Davidson, J.S., Fisher, J.W., Dinan, R.J., presented by Sudame, S. at the 2005 ASME International Mechanical Engineering Congress & Exposition, Orlando, FL, November 5-11, 2005.

“Strain Rate of Polymeric Materials used for Blast Reinforcement,” Sudame, S., Davidson, J.S., Fisher, J.W., Dinan, R.J., presented at the 2005 ASME International Mechanical Engineering Congress & Exposition, Orlando, FL, November 5-11, 2005.

“Failure Mechanisms of Polymer Reinforced Concrete Masonry Walls Subjected to Blast,” James S. Davidson, Jeff W. Fisher, and Robert J. Dinan, 2004 ASME International Mechanical Engineering Congress & Exposition Anaheim, CA, November 15-19, 2004.

“Full Scale Testing of Polymer Reinforced Blast Resistant Windows,” Robert J. Dinan, Jeff W. Fisher, and James S. Davidson, (presented by Lt E. Trawinski), 2004 ASME International Mechanical Engineering Congress & Exposition Anaheim, CA, November 15-19, 2004.

“Energy Absorbing Effectiveness and Strain Rate Response of Composite Materials used for Blast Reinforcement,” James S. Davidson, Uday K. Vaidya, and Robert J. Dinan, 2004 ASME International Mechanical Engineering Congress & Exposition Anaheim, CA, November 15-19, 2004.

“High Capacity Anchor Block Design, Analysis, and Testing,” Presented to the U.S. Military Major Commands (MajComs) for Pavement Engineering at Tyndall AFB, December 17, 1998.

REPORTS

Perkins BT and Davidson JS “Design of a Rapid-Erect, Man-Portable Structure for Airbase Asset Protection,” Submitted to the Air Force Research Laboratory, Air Base Technologies Division, Tyndall Air Force Base, Florida, USA, Reference: Universal Technology Corporation (UTC), Technical Operations Support (TOPS IV), FA8650-11-D-5800, Subcontract 11-S7401-01-C1, August 2013.

Sadler DP, Nickerson JM, and Davidson JS, “Development of Response Prediction Methodologies for Reinforced Concrete and Reinforced Masonry Partition Walls Subjected to Interior Shock Loads,” A final report submitted to the Air Force Research Laboratory, Air Base Technologies Division, Tyndall Air Force Base Florida, and Universal Technology Corporation, Reference: Technical Operations Support (TOPS IV), FA8650-11-D-5800, Subcontract 11-S7401-01-C1, July 2013.

Sadler DP and Davidson JS, “Development of a Single-Degree-of-Freedom Algorithm for the Analysis of Buried Composite Pipes Subjected to Internal Dynamic Pressure,” A final report submitted to the U. S. Army Engineer Corps of Engineers, Engineer Research and Development Center, Contract W912HZ-10-C-002, December 2011.

Brannon DG and Davidson JS, “Breaching Analysis of Partially Grouted Concrete Masonry Walls Subjected to Blast Loading (Advanced Computation Dynamics Simulation of Protective Structures Research),” Air Force Research Laboratory Report AFRL-RX-TY-TR-2013-0005, February 2013.

Davidson JS, Newberry CM, Hammons MI, and Bewick BT, “Finite Element Simulation and Assessment of Single-Degree-of-Freedom Prediction Methodology for Insulated Concrete Sandwich Panels Subjected to Blast Loads,” Air Force Research Laboratory Report AFRL-RX-TY-TR-2011-0080, March 2011.

Davidson JS, Hoemann JM, Salim HH, Shull JS, Dinan RJ, Hammons MI, and Bewick BT, “Full-scale Experimental Evaluation of Partially Grouted, Minimally Reinforced CMU Walls against Blast Demands,” Air Force Research Laboratory Report AFRL-RX-TY-TR-2011-0025, March 2011.

Browning RS and Davidson JS, “Resistance of Multi-Wythe Insulated Masonry Walls Subjected to Impulse Loads,” A technical report submitted to the National Concrete Masonry Association and to the Airbase Technologies Division, Air Force Research Laboratory, AFRL-RX-TY-TR-2008-4603, December 2008; published through the Defense Technical Information Center (DTIC).

Moradi LG and Davidson JS, “Resistance of Membrane Retrofit Concrete Masonry Walls to Lateral Pressure,” a technical report submitted to the Air Force Research Laboratory, Tyndall AFB, FL, published through the Defense Technical Information Center (DTIC). AFRL-RX-TY-TR-2008-4540.

Davidson JS, Somasundaram D, Dinan RJ, “Finite Element Simulation of Polymer Encased Concrete Walls,” a technical report submitted to the Air Force Research Laboratory, Airbase Technologies Division, Tyndall AFB, FL, published through the Defense Technical Information Center (DTIC), August 2007.

Davidson JS, Ray DP, Dinan RJ, “Development of a SDOF Model for an Aluminum Arch Subjected to Impulse Loads,” a technical report submitted to the Air Force Research Laboratory, Airbase Technologies Division, Tyndall AFB, FL, published through the Defense Technical Information Center (DTIC), August 2007.

Davidson JS, Harrison, BR, Rajamani V, “Analysis of a Bolt-Down Aircraft Anchor,” a technical report submitted to the Air Force Research Laboratory, Tyndall AFB, FL, April 2006.

Davidson JS and Sudame S, "Development of Hi-Fidelity Computational Models and Input Sensitive Study of Masonry Walls Subjected to Blast," a technical report submitted to the Air Force Research Laboratory, Tyndall AFB, FL, published through the Defense Technical Information Center (DTIC), December 2004.

Davidson JS and Thornburg DL, "Explosive Test Evaluation of Elastomeric Polymers for Retrofit of Unreinforced Masonry Walls Subjected to Blast," a technical report submitted to the Air Force Research Laboratory, Tyndall AFB, FL, published through the Defense Technical Information Center (DTIC), August 2004.

Davidson JS and Thornburg DL, "Laboratory Methodology for Evaluating Polymers Used for Blast Reinforcement," a technical report submitted to the Air Force Research Laboratory, Tyndall AFB, FL, August 2004.

Moradi L and Davidson JS, "Constitutive Properties for a Single Concrete Masonry Unit (CMU) Subjected to Blast," a technical report submitted to the Air Force Research Laboratory, Tyndall AFB, FL, May 2003.

Davidson JS, and Connell JD, "Explosive Testing of Polymer Retrofit Masonry Walls," report submitted to the Air Force Research Laboratory, Tyndall AFB, FL, September 2001.

Davidson JS, “High Capacity Aircraft Anchor Block Design and Analysis,” report submitted to the Air Force Research Laboratory, Air Base Technology Branch, Tyndall AFB, FL, November, 1998.

Davidson JS, Cotter B, Brown R, “High Capacity Aircraft Anchor Block Design and Analysis,” report submitted to Headquarters, Air Combat Command, USAF, December, 1998.

SPONSORED PROJECTS

Principal Investigator, “Finite Element Simulation of Insulated PC/PS Sandwich Panels Optimized for Construction of Government Facilities,” a Daniel P. Jenny Research Fellowship Grant sponsored by the Precast/Prestressed Concrete Institute, July 2012 through June 2014.

Principal Investigator, “Optimization of Advanced Materials Solutions for ERDC Deployable Force Protection Research,” U.S. Army Corps of Engineers, Engineer Research and Development Center, September 2011 through August 2014.

Principal Investigator, “Modeling and Simulation Support of Forward Base Infrastructure Blast and Fragment Mitigation Research,” Universal Technologies Corporation (UTC) Technical OPerations Support (TOPS) contract “Blast & Fragment Mitigation & Recovery for Forward Base Infrastructure” with the Air Force Research Laboratory, April 2011 through August 2013.

Principal Investigator, “Collaborative Research: Development of a Blast and Ballistic Resistant Precast Concrete Armored Wall System,” National Science Foundation, Division of Structural Systems and Hazard Mitigation of Structures, Lehigh Co-PI Professor Clay Naito, August 2010 through August 2014.

Principal Investigator, “Rapid Strengthening of Roadway Drainage Culverts Subjected to Internal Dynamic Pressure,” U. S. Army Corps of Engineers, Engineer Research and Development Center, February 2010 through December 2011.

Principal Investigator, “Advanced Computation Dynamics Simulation of AFRL Protective Structures Research,” Air Force Research Laboratory, through Black & Veatch, Federal Service Division, September 2008 through August 2010.

Principal Investigator, “Advanced Computation Dynamics Simulation of Protective Structures Research,” Air Force Research Laboratory, through a Collaborative Research and Development Contract with Universal Technology Corporation, January 2007 through April 2008.

Principal Investigator, “Analysis of Precast Wall Panels Subjected to Blast,” a Daniel P. Jenny Research Fellowship Grant sponsored by the Precast/Prestressed Concrete Institute, October 2008 through August 2010.

Principal Investigator, “Direct Support of Force Protection Structures Research,” an Intergovernmental Personnel Act (IPA) agreement with the Air Force Research Laboratory, Wright Laboratories, Airbase Technology Branch, Tyndall AFB, Florida, January 2005 through December 2006.

Principal Investigator, “Analysis of Precast Wall Panels Subjected to Blast,” a Research Fellowship Grant sponsored by the Precast/Prestressed Concrete Institute, October 2006 through September 2007.

Principal Investigator, “Modeling of Concrete Masonry Walls Subjected to Blast,” sponsored by the NCMA Education and Research Foundation, October 2005 through December 2008.

Principal Investigator, “Direct Support of Force Protective Structures Research,” an Intergovernmental Personnel Act (IPA) agreement with the Air Force Research Laboratory, Wright Laboratories, Airbase Technology Branch, Tyndall AFB, Florida, January 2003 through December 2004.

Principal Investigator, "Computational Analysis Support of AFRL Force Protection Research," Air Force Research Laboratory, Tyndall AFB, FL, October 2002, 5-years.

Principal Investigator, "Computational Analysis of Retrofit Masonry Walls Subjected to Blast," Air Force Research Laboratory, Tyndall AFB, FL, March 2001 through August 2002.

Principal Investigator, “Aircraft Anchor Block Design and Analysis,” sponsored by the Air Force Research Laboratory, Airbase Technology Branch, Tyndall AFB, Florida, April 1998 through September 1998.